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Product details
Part NameFlex Fuel Sensor
BrandWalker Products
Part Number243-1001
UPC00724620138492
Estimate Delivery Date
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If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Walker Products Flex Fuel Sensors are designed for use in flex fuel equipped vehicles to monitor the ethanol content of blended fuels from E0 to E85 and beyond. These sensors transmit real-time ethanol percentage data to the engine control module (ECM), allowing automatic adjustment of fuel delivery and ignition timing for optimal combustion and emissions. Built to meet OE standards for fit, signal response, and performance, Walker sensors integrate seamlessly with factory fuel management systems. Durable materials ensure resistance to fuel, temperature swings, and corrosion for reliable operation over time. As direct-fit replacements, they help restore fuel economy, drivability, and compliance with emissions standards in a variety of modern flex fuel vehicles.
Characteristics include:
Direct-fit design simplifies install and restores drivability quickly.
Ensures optimal performance and emissions in flex fuel equipped vehicles.
3/8" quick-connect fittings allow easy integration in factory or custom fuel lines.
Accurately detects ethanol content for proper fuel system adjustments.
Built to match OE specs for fit, function, and signal compatibility.
Watch genuine customer videos showing their upgrades and honest results of similar products
Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
2005
Chevrolet
Silverado 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2005
Chevrolet
Suburban 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2005
Chevrolet
Tahoe
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2005
GMC
Sierra 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2005
GMC
Yukon
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2005
GMC
Yukon XL 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
Chevrolet
Silverado 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
Chevrolet
Suburban 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
Chevrolet
Tahoe
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
GMC
Sierra 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
GMC
Yukon
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2004
GMC
Yukon XL 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
Chevrolet
Silverado 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
Chevrolet
Suburban 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
Chevrolet
Tahoe
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
GMC
Sierra 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
GMC
Yukon
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2003
GMC
Yukon XL 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2002
Chevrolet
S10
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
FLEX
2002
Chevrolet
Silverado 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2002
Chevrolet
Suburban 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
Engine VIN code Z
2002
Chevrolet
Tahoe
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2002
GMC
Sierra 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2002
GMC
Sonoma
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
2002
GMC
Yukon
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
FLEX
2002
GMC
Yukon XL 1500
5.3L
V engine
8 cylinders
3.78" bore
3.62" stroke
Engine VIN code Z
2001
Chevrolet
S10
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
FLEX
2001
GMC
Sonoma
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
2000
Chevrolet
S10
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
FLEX
2000
GMC
Sonoma
2.2L
Inline engine
4 cylinders
3.50" bore
3.46" stroke
FLEX
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Customer Reviews
Overall rating: 4.9 / 5 from 594 reviews.
I love PartsPioneer. The rear-wheel Positive Plus pads and Genius rotors fit perfectly on my 2019 Subaru Forester. Excellent quality at a fair price. Highly recommended.
Thanks for catching an error in my order and righting it for me, complete with email to say so! This … is what customer service head and shoulders above, looks like !! Well done all !!
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Thanks
Renato
Awesome parts, for a great deal, and the customer service is second to none, always willing to help, and they double check fitment to ensure you always get the right parts! Will definitely be ordering again.